Scale.



for effectua ly UNITED STATES PATENT oFFioE'. 1' i 4 Join L. irnsOBALD,or DAYTON, OHIO, ASSIGNOR 'ro TOLEDO COMPUTIXGSICALEA COMPANY,

OF- NEWARK, JERSEY, A CORPORATION OF NEW JERSEY.

SCALFL.

I Specification of Letters Patent.

Patented Aug. 4, 1908.

Application flied April 28, 1904. Serial No. 205,397.

' ments in Scales, of which the following is a specification.

My ivention has relation to scales generally, and more particularly to ascale having a platform mounted on two bearings, and the object of minvention is to provide means preventing any disarrangement ordisturbing of these hearings in case the loader article to be wei hedshould be' placed .on one side of the platform or pan which mightordinarily tilt such platform, raising one of the bearings from itspivots and thereby interfering with the correct indies-- I tion by thescale.

In a scale made according to my invention,- the pivots and bearings areso constructed and arranged that they remain in fixed relative ositionwhether the load or article to be weig ed is placed directly centrallyof the.

platform or at one side,eve'n on themargin thereof. 4

In the drawin s, Figure 1 is a side elevation of a scale p atformembodying my improvements; Fig. 2 a section on line 2 of Fig.

1; 3 and 4 sections respectively on lines 3 and 4 of Fig. 2; Fig. 5 aperspective view of one of the platform ivots; Fig. 6, a perspectireview of one of t e bearings.

For the purpose of affording a clear and, comprehensive understanding ofmy mven-.

tion, I have shown the same applied to the particular form of platformscale illustrated in the drawing, in which the scale beam may beconnected to simple weighing mechanism, or mechanism of any t e for bothweighing and price-computing. it will therefore be understood that myinvention, considered in its broader as ect is not to be held limited orrestricted to the details herein shown or hereinafter described.

' leferring to Figs. 1 and 2 of the drawings, the usual scale beam 1 ismounted in the ordina y bearings at 2 arranged at the upper ends of thesupporting arms 3. These su porting arms are'in turn'supported by tie.

" shown) is adapted to rest upon a spider frame 7 provided at itsoppositesides with depending bearing lugs or standards 8 which areupw-ardly slotted so as to receive and hold the knife edge bearings 9,preferably made of agate and pointing downwardly. The frame 7, however,ma be considered the platform of the scale. l he scale beam 1 haslateral projections 10 (Fig. 2), from which extend the upwardlyprojecting knife edge pivots 11 upon which the knife edge'bearings 9rest and have their movement. The bearings thus far described are thosewhich are in common use in scales of this character, but it some-' timeshappcns,'.when the load is improperly placed on the platform, that theconsequent i tilting of the latform frame 7 will lift the bearings 9 offt eir pivots 11 and'possibly in-.

terfere'with the pro or working of the scale.

To overcome this d culty, each of the scale beam pivots is provided withtwo knife edges,

the one already describedand an additional one therebeyond.. The oldknife edge or pivot points upwardly while the new or ad- -ditional onepoints downwardly, as will be understood from the following description.

The new or additional knife edge or ivot marked 12 is by preferenceformed 0 the same piece of material as the other pivot and connectedtherewith by the vertical block 13.

These knife edges 11 and 12 are constructed with their bearing edges onthe same hori-.

zontal lane, and, as indicated, are arranged reverse y to each other. Arlght-an led end plate 14 is removably secured to each of the slottedbearing lugs or standards 8 and rovided with a bearing block 15 which isnotched on its upper edge to forma knife edge bearing toreccive theknife edge or pivot 12. The knife edge bearin s 9 and 15 are pointed orarranged revorsly to each other in the same manner as the pivot bearin s11 and 12;

it will be understood that any tilting tend ency of the platform or panfrom any cause whatsoever, which ordinarily would lift the bearings 9off their pivots, does not affect the scale beam and the accuracy oftheindicating 1C0 mechanism controlled thereby, inasmuch as its pivotbearings at its ends remain undisturbed by such tilting action of theplatform or pan, for the reason that the bearing block 15 andconsequently the entire sets of bearings move upwardly bodily with theplatform framo.-

Although I have described more or less precise forms and details ofconstruction, I

do not intend to be understood as limiting 11o myself thereto as Icontemplate changes in form, proportion of parts and substitution ofequivalents as eircinnstam-es may require or render expedient withoutdeparting from the spirit and scope of my in'senti n and claims.

bearin s, and a sea 0 bean: having on oppositeshits a plurality of knifeedge ivots cooperating with said hearings in too standards and plates.

3. In a scale, the combination of a scale, platform having on oppositesides dependmg rhearing standards, knife edge bearings located in saidstandards and pointing downward, plates secured to said standards and.)rovided with upwardly pointing knil'e edge earings, and a scale beamhaving pivots on opposite sides, each pivot being provided standart withupwardly and downwardly pointing iges cooperating with the bearingsofknife er the platform. r

4. In a scale, the combination of a's-iale platform having on oppositesides dependnag bearing stamlards, knife edge bearings .ioeated in saidstandards and pointing down wards, )lates removably secured to said isand provided with the block 15 having an upwardly pointing knife edge.bearing, and a scale beam having pivots on opposite sides, ear-h pivotbeing provided with the n )wardly and downwardly pointing knife ed ings9 and 15.

5. The combination of the )latt'orm havin; the slotted bearim S'Dflhtards S, knife edge bearings 9 in said slots of the standards,

plates 14 seeured to said standards and provided with the knife edgebearing, blocks 15, and a. scale beam provided at opposite sides withpivots, each comprising knife edges 11 and 12 connected by the, block orpiece 13 and cooperating with the bearings 9 and 15.

- JOHN L. 't] I ICOBAI ,1).

Witnesses:

Jon: J. HALL, F. L. Henson."

ges 1t and 13 cooperating with the bear-

